SA safety agency has 'toxic' culture

South Australia's workplace safety agency SafeWork SA operates in a "toxic" culture and is largely devoid of coherent, logical and structured policies, an investigation has found.

Independent Commissioner Against Corruption Bruce Lander has pointed to a range of problems within the agency which he says creates a working environment at serious risk of corruption, misconduct and maladministration.

"SafeWork SA is lost in a sea of overly convoluted, unnecessary and ineffective policies," Mr Lander said in his report tabled in state parliament on Thursday.